The No. 2 overall pick in the 2008 First-Year Player Draft had 10 hits in his past 24 at-bats after the breakout game at Charlotte, with four doubles, a homer and seven RBIs during the eight-game stretch.
Alvarez, 23, was hitting .310 in May compared to .224 in April, and his average was up to .267. The former Vanderbilt standout has 10 homers and 43 RBIs in 47 games. He has walked 22 times compared to 45 strikeouts, posting a .354 on-base percentage to go with a .517 slugging mark.
The left-handed hitter homered on Opening Night for Indianapolis, but then suffered some lean times at the plate. Alvarez's fielding, not considered a strength, has remained more steady. He has made only five errors.
Alvarez spent last season with Lynchburg of the Class A Advanced Carolina League and Altoona of the Double-A Eastern League, hitting a combined .288 with 27 homers and 95 RBIs.